# US 12,214,532 B2 · Electronic device including housing and method for manufacturing the housing

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- Number: US 12,214,532 B2
- Document ID: US12214532B2
- Status: Granted
- Kind: B2
- Application number: 17/554,664
- Filed: 2021-12-17
- Published: 2022-06-16
- Granted: 2025-02-04
- Earliest claimed: 2020-12-16
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Changsu Kim; Hyunjung Jung; Hangyu Hwang; Sangsik Na; Hongbum Park
- Web page: https://patentgrep.com/patent/US12214532B2

## CPC

- B29C 45/372: {provided with means for marking or patterning, e.g. numbering articles}
- H04M 1/0283: {for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate}
- C23C 14/06: characterised by the coating material ({C23C14/0021} , C23C14/04 take precedence)
- H04M 1/0202: {Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03)}
- H05K 5/00: Casings, cabinets or drawers for electric apparatus
- B29C 45/37: Mould cavity walls {, i.e. the inner surface forming the mould cavity, e.g. linings}
- B29K 2069/00: Use of PC, i.e. polycarbonates {or derivatives thereof}, as moulding material
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

An electronic device is provided. The electronic device includes a housing; and a coating layer formed on at least a portion of a surface of the housing, wherein the coating layer comprises a paint, the paint including a one-component acrylate-based paint having a property of being cured by an ultraviolet (UV) light, or a one-component or two-component paint containing acryl and urethane and having a property of being cured by heat, wherein the coating layer has a pattern structure including an uneven pattern through laser processing on a portion of a coating film formed by applying the paint, and wherein two or more regions having different glossiness may exist on the surface of the housing by the pattern structure of the coating layer.

## Claims

### Claim 1

An electronic device comprising:
a housing; and
a laser-processed coating film formed on at least a portion of a surface of the housing,
wherein the laser-processed coating film comprises a paint, the paint including a one-component acrylate-based paint having a property of being cured by an ultraviolet (UV) light, or a one-component or two-component paint containing acryl and urethane and having a property of being cured by heat,
wherein the laser-processed coating film has a pattern structure including an uneven pattern through laser processing on a portion of a coating film formed by applying the paint, the uneven pattern including a plurality of groups of peaks having heights different from each other, and
wherein the laser-processed coating film has multiple textures including glossy and matte such that the surface of the housing includes two or more regions having different glossiness.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein the laser-processed coating film comprises a transparent glossy region.

### Claim 3 (depends on 1)

The electronic device of claim 1, wherein in the laser-processed coating film, a first region that does not include the uneven pattern is a transparent glossy region, and a second region that includes the uneven pattern has a relatively low gloss compared to the transparent glossy region of the first region.

### Claim 4 (depends on 1)

The electronic device of claim 1, wherein the pattern structure includes a standardized shape in which the uneven pattern is arranged in accordance with a specific rule.

### Claim 5 (depends on 4)

The electronic device of claim 4, wherein the pattern structure further includes an unstandardized shape in which another uneven pattern is irregularly arranged.

### Claim 6 (depends on 1)

The electronic device of claim 1,
wherein the pattern structure includes two or more types of uneven patterns having different ranges of uneven depth, and
wherein the laser-processed coating film has three or more regions with different glossiness.

### Claim 7 (depends on 1)

The electronic device of claim 1,
wherein a thickest portion of the laser-processed coating film has a thickness of 20 to 40 μm, and
wherein the uneven pattern included in the pattern structure has an uneven depth of 2 to 15 μm.

### Claim 8 (depends on 7)

The electronic device of claim 7, wherein the pattern structure includes a combination of a first uneven pattern having an uneven depth of 2 to 10 μm and a second uneven pattern having an uneven depth of 5 to 15 μm.

### Claim 9 (depends on 1)

The electronic device of claim 1,
wherein a base material of the housing is formed using at least one material of a synthetic resin, a glass, a film, a metal, or a composite material, and
wherein the laser-processed coating film is formed on the base material.

### Claim 10 (depends on 9)

The electronic device of claim 9, wherein the base material is formed to include a transparent or opaque polycarbonate resin material.

### Claim 11 (depends on 9)

The electronic device of claim 9, wherein at least one layer selected from a color layer, a shielding layer, or a deposition layer is laminated on at least one surface of the base material.

### Claim 12 (depends on 11)

The electronic device of claim 11, wherein when the at least one layer is laminated on an upper layer of the base material, the laser-processed coating film is formed on the at least one layer.

### Claim 13 (depends on 1)

The electronic device of claim 1, further comprising:
a protective layer formed on the laser-processed coating film so as to prevent contamination and scratches.

### Claim 14 (depends on 1)

The electronic device of claim 1, wherein the housing is a protective cover for protecting at least a partial area of the electronic device.

### Claim 15

A method for manufacturing a housing of an electronic device, the method comprising:
preparing a base material; and
forming a laser-processed coating film on the base material, wherein forming the laser-processed coating film includes:
forming a transparent glossy film by applying a paint on the base material, the paint being a one-component acrylate-based paint having a property of being cured by a UV light source, or the paint being a one-component or two-component paint containing acryl and urethane and having a property of being cured by heat, and
forming a pattern structure having an uneven pattern by performing laser processing on a portion of the transparent glossy film, the uneven pattern including a plurality of groups of peaks having heights different from each other,
whereby the laser-processed coating film has multiple textures including glossy and matte such that a surface of the housing includes two or more regions having different glossiness.

### Claim 16 (depends on 15)

The method of claim 15, wherein forming the transparent glossy film is performed by a spindle painting method or a flow coating method.

### Claim 17 (depends on 15)

The method of claim 15, wherein forming the pattern structure is performed using blasting processing together with the laser processing.

### Claim 18 (depends on 15)

The method of claim 15, wherein preparing the base material includes injecting a material including a transparent or opaque polycarbonate resin.

### Claim 19 (depends on 15)

The method of claim 15, further comprising:
laminating at least one layer selected from a color layer, a shielding layer, or a deposition layer on at least one surface of the base material,
wherein laminating the at least one layer is performed before forming the laser-processed coating film.

### Claim 20 (depends on 15)

The method of claim 15, further comprising:
forming a protective layer on the laser-processed coating film so as to prevent contamination and scratches.
